Finding the Fourth Proportional to 213,138.63, 294,141.11 and 122,523.93
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Solution
The fourth proportional to 213,138.63, 294,141.11 and 122,523.93 is: 169,088.65
Step by Step Solution
- Step 1: Write the proportion equation
213,138.63 : 294,141.11 = 122,523.93 : x - Step 2: Convert to fraction form
213,138.63/294,141.11 = 122,523.93/x - Step 3: Cross multiply
213,138.63x = 294,141.11 × 122,523.93 - Step 4: Simplify right side
213,138.63x = 36,039,324,159.14 - Step 5: Solve for x
x = 36,039,324,159.14/213,138.63 - Step 6: Final answer
x = 169,088.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.